www/rubygem-rails52: Update pkg-descr

www/rubygem-rails52/pkg-descr

@@ -1,10 +1,23 @@
-Rails is a web-application framework for the MVC pattern that includes
+Rails is a web-application framework that includes everything needed to create
-both a template engine, controller framework, and object-relational
+database-backed web applications according to the Model-View-Controller (MVC)
-mapping package. Everything needed to develop web-apps that can run on
+pattern.
-CGI, FastCGI, and mod_ruby
 
-Being a full-stack framework means that all layers are built to work
+Understanding the MVC pattern is key to understanding Rails. MVC divides your
-seamlessly together. That way you Don't Repeat Yourself (DRY) and you
+application into three layers: Model, View, and Controller, each with a specific
-can use a single language from top to bottom. Everything from templates
+responsibility.
-to control flow to business logic is written in Ruby - The language of
+
-love for industry heavy-weights.
+Active Record, Active Model, Action Pack, and Action View can each be used
+independently outside Rails.
+
+In addition to that, Rails also comes with:
+- Action Mailer, a library to generate and send emails
+- Action Mailbox, a library to receive emails within a Rails application
+- Active Job, a framework for declaring jobs and making them run on a variety of
+  queuing backends
+- Action Cable, a framework to integrate WebSockets with a Rails application
+- Active Storage, a library to attach cloud and local files to Rails
+  applications
+- Action Text, a library to handle rich text content
+- Active Support, a collection of utility classes and standard library
+  extensions that are useful for Rails, and may also be used independently
+  outside Rails